Machine for milling links for engines



(No Model.) 5 Sheets-Sheet 1. W. H. DENNEY.

MACHINE FOR -MILLING LINKS FOR ENGINES.

No. 271,431. Patented Jan.30,1883.

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' W; H. DENN'J'JY.

MACHINE FOR MILLING LINKS FOR BNGINES.

Patented Jan. 30, 1883.

5 Sh'eets-Sheet 3.

Patented Ja,11.30, 1883.

(No Model.)

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(No Model.) 5 Sheets-Sheet 5.

W. H. DENNEY.

MACHINE FOR MILLING LINKS FOR ENGINES. Na. 271,481. Patemed Jamo, 1888.

UNHED STATES PATENT nricn,

VILLIAM H. DENNEY, OF LANOASTER, PENSYLVANIA.

MACHINE FOR MILLING LINKS FOR ENGINES.

SPECIFICATION forming part of Letters Patent No. 271,431, dated January 30, 1883.

Application filed August 2:2, 1882. (No model.)

To all 'whom it inny' oo'ncei'a Be it known that I, WILLIAM H. DENNEY, of Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Machines for -Milling Links for Locomotive, Stationary, and

Marine Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and use it, reference being had to the acooinpanying drawings,which form part of this speciiication.

Wy invention relates to an improvement in machines for milling links for locomotive, stationary, and marine engines; and it consists in the combination of a pivoted arm, provided with suitable means wherehy thelinks may be secured at any desired distance from the center of motion of the arm, whereby the desired radius in the link can be given, with a mechanism for moving the arm, a standard provided with suitable stops, and a carriage cari'ying a milling-tool.

lt still furtherconsists in a carriage provided with the milling-tool upon its top and a mechanism for moving the carriage back and forth, and a mechanism for varying the speed at which the arm shall be moved while the milling-tool is at Work, all of which will be more fully described hereinafter.

- The object of my invention is to prod'uce a .machine by which links used upon engines ofv different kinds can be entirely machinemade,

and thus dispense with all handlabor uponthem, whereby a better link can be prod'uced at a much smaller cost than can be d'one by either a planer or a slotter.

Figure lis a side elevation of a machine embodying my invention. Fig. 2 is an end view, and Fig. 3 is a plan view, of the same. Figs. 4, 5, 6, 7, 8, 9, 10 are detail Views.

M represents a suitable bed-plate, which may b'e either of the Shape here shown or any other that maybe preferred, and upon which the whole of the machine is placed. Upon one corner of this bed-plate rises the standard N, in the top of which is journaled the mandrel B, having the slotted arm .A secured to one of its ends. This arm will be made of any desired length, so as to make links from the largest to the smallest size that is used, and the arm is provided with a series of slots or fastcni'ng devices of any ;kind from one end to the other, so that the link that is being made can be fastened to the arm at any point desired. The mandrel B at its outer end is provided with a scrcw-thread, and upon this screw-threaded end are placed two nuts, vso thatthe arm can be drawn against the face of the column or standard N With sufficient force to prevent the slightest vibration or lateral movement.

Journaled at any suitable point in bearings which rise upward from the shears E is the main driving-shaft O, which receives its motion through the pulleys P from any suitable source. This shaft has a spline running from end to end, as shown in Fig. 3, and upon the outer end of the shaft are secured the two beveled gears Q, between which the'clutch D is placed, so that by shifting the clutch fromand forth upon this shaft O is the pinion T,

which is provided with a feather to catch in vthe spline, so as to cause it to revolve with the shaft, and which pinion meshes with the beveled gear U, secured to the end of the shaft which passes through the bottom of the column F. This shaft has secured to it a driving drum or pulley, L, from which the belt passes up over the pulley which is secured to the shaft H, and which shaft H has 'the milling-toolsecured to its inner end for finishing the slot which is to be made in the link. This shaft or spindle H is jonrnaled in the head G, which is dovetailed 'upon the top of the column F, and which can be nioved back and forth over the top of the column, so as to move the milling-tool into and withdraw it from the slot in the link. Either the screw here shown for moving this head back and forth may be used or any other means which may be preferred. The link having been secured to the arm A at a suitable distance from the center of motion, the column F is adjusted into position so that the cutter will come just opposite to the slot in the link, and then the milling-tool is moved endwise across the top of the column, so that it will catch in- ICO side-of the slot in the link. Should the column require but a very slight adjustment, it may be moved by means of the hand-wheel K, which is secured to the upper end of the shaft V, which has the pinion VV secured to its lower end. This pinion meshes with the beveled gear X, which is placed upon the screw I, which passes through the center of the shears E, and by means of which the column F can be adjusted either forward or back. This column F is dovetailed upon the top of the shears, and is then secured in place by means ot' suitable set-screws.

The shaft lt has secured to one end the piniQn S and totheother endthepinion Y, which meshes with the beveled gear Z, which is secured to a short shaft which is journaled in one end of the shears E, and a suitable bracket which su pports its outer end. Upon this shaft are secured the two wheels l 2, of different sizes, one of which gears with a large wheel, 3, and the other with a smaller wheel, 4, on a hollow counter-shaft, 5, which is provided with driving-pulleys (i. The two wheels 3 and 4 can be locked to or disconnected from the counter-shal't 5 by means of the clutch a, which is connected to the inner end of the slide-rod e, which extends outward through the shaft. By shil'ting this clutch a either wheel 3 or 4 can be made to drive the shalt, according as a faster or slower motion is desired. From these pulleys (i passcs the belt over around the doublc-ended pulleys 7, which are placed upon a short shaft which is journaled in one end of the shears and a suitable standard made to support its outer end. Upon the inner end of this shaft 8 is secured the pinion 9, which meshes with the wheel 10 upon the outer end of the screw 1. This screw is provided with a suitable clutch, 11, by means of which the wheel 10 can be thrown in and out of gear with the screw, and thus enable the screw to be stopped at any time. This clutch 11 is connected to the lever 12, which hasitslonger end pivoted to the endwise-inoving rod 13, which extends along upon the side of the shears E. Secured to this endWise-moving rod 13 are the two dogs 14. When the column F reaches the desired point it strikes against one of the dogs 14 and moves the rod 13 so as to shift the clutch 11, and thus throw the screw 1 out of gear 'with the Wheel10, and thus stop all movement of the screw. \Vhen it is desired to move the column again the clutch 11 must be moved in gear with the wheel 10 by moving the rod 13 endwise by hand. For this purpose either one of the dogs 14 may be provided with a small handle.

From the double-ended pulley 7 extends a belt, which passes over the pulley 15 ou a shat't, 16, which has a worm,17, secured to its inner end. This wortu 17 gears witha Wormwheel, 18, which revolves loosely upon the vertical shaft 19, when the worm-wheel is not connected to the shaft by means of the clutch 20. Then the clutch is thrown out ofgear with the worm-wheel 18 the shaft 16 will cause' of the arm A.

the worm-wheel 18 to freely revol ve without affeeting the shaft 19; but when the shaft 19 is made to revolve by the worm-wheel 18 the worth-wheel 21, which meshes with the teeth vformed on the outer end of the arm A, will cause the arm A to rise and fall, so that the milling-tool will traverse from one end ot' the slot in the link to the other. The clutch 20 has connected to it the lever 22 and a conuecting-rod, which has pivoted to its lower end the lever 23, which, when struck by the lever that is secured to the cam L2, which is secured to the lower end of the a-rtn A, throws the clutch 20 out of gear and stops the movement Through the arm A are made a series ot' holes, so that this cam can be adjusted from one point to the other, and as the cam-frame 24 is slotted a very fine adjustment can be given to it, so as to regulate the length of the stroke of the arm. The upper cam, D2, is fastenedin a groove, B2, which is made in the side of the arm A, and which is made adjustable, so that it will throw the clutch 20 out of gear wheuever the arm A is moved upward far enough to bring the milling-tool against the end of the slot in the link.

Rising upward from the bed M is a suitable column, A', against the side ofwhich the arm A bears at its outer end, for the purpose of steadying the arm in its movement and preventing vibration of any kind. Upon the front side of this column is built a suitable plate, B', which bears against the front side of the arm, and thus the end of the arm is held between the two parts, so that any but a verticalmovement is impossible.

In order' to enable the movement of the arm or lever A to be reversed when it reaches the end of its Vertical play in either direction, two cams are used. The one which is attached near the upper end of the arm or lever consists of a bolt, A2, which has its headed end held in the slot B2 in the arm A. Over this bolt A2 is passed the washer C2, which bears against the side of the arm A, and against this washer bears the cam D2, provided with the Ihandle E2 and the inner end of the sleeverF2. Between the outer end of the sleeve F2 and the cam D2 is placed a spring-washer, G2, which serves to hold the cam in any position into which it is turned by means of frictional contact. Upon the outer end of the bolt A2 is placed a nut, 12, by means of which the partsA can be clamped rigidly together. While the link is being milled the cam is set'so that its thickest part will strike the lever E2 and disengage the clutch. After the clutch is disengaged and the movement of the arm A is stopped, and it is desired to throw the clutch in gear again, the cam D2 is turned around by means of its lever E2 until the shorter side of the cam stands where the long side was. The lever E2 ean then be moved to allow the clutch to en-gage again. The lower clutch consists of a cam, L2,'which is placed upon the bolt O2, which has the clamping-nut P2 serewed upon its outer end. Between the nut and the cam IOO IZO

. links, can be secured to the arm provided with suitable stops to limit the moveis a spring-washer, N2, which serves to hold the cam in position by frictional contact. This cam is designed to be turned upon its bolt, as above described, so that its handle will be struck by the arm or lever, and moved so as to loosen the cam and stop the movement.

The link is first forged, cast, or otherwise formed, its sides planed, and then it is rigidly secured to the arm A at any suitable point. The column F is then adjusted into position so that the milling-tool will cut away either the outside edges of the link or elit away the edges of the slot, as may be desired. The milling-toolis designed to finish the edges and ends of the link complete, so that when the link is removed from the arm it will be a finished link, ready to be case-hardened. By means of a machine constructed as above described it will be seen that all hand-labor in finishing the link is entirely dispensed with, and that a perfect link is made entirely by machinery. After the link has been finished the blocks, which are to move in the slots in the and inilled otf in the same manner. v

I do not limit myself to the precise devices here shown for giving the arni a Vertical movement, for this may be accomplished by a different arrangement of the parts without in any Wise affecting the operation of the machine.

Having,` t'hus described my invention, I claim l. In a milling-machine, the combination of the pivoted arm, a mechanism for moving the free end of the arm through a portion of a circle, and a standard at the free end of the arm,

ment of the arm, with a carriage that is movable back and forth in a line with the arm, and having a inilling-tool mounted thereon, substantially as shown.

2. In a milling-machine, the combination of a pivoted arm that is adapted to sweep through a portion of a circle at its free end, and having a series of slots through it, so that the link can be secured to it at any point, with a carriage that s moved back and fort-h in a line with the arm, and a miIling-tool that is adjustable back and forth on the carriage, substantially as described.

3. The combination of the arm A, pivoted upon the mandrel B, and provided With means for the attachment to its side of the links, shaft 16, worm-gear 18, shaft 19, clutch 20, worm 21, dogs secured to the arm, and a suitable mechanism for throwing the clutch 20 in and out of gear, substantially as specified.

4. The combination of the arm A, which is made ,to sweep througha portion of a circle, and which is adapted to have the link or other device securell to its side, and a mechanism for moving the arm with the column F, carrying the rnilling-tool upon its top, and which is made to move back and forth along the side ot' the arm.

5. The combination of the column F, carrying the milling-tool upon its top and adapted vto be moved back and forth upon the shears E, with the screw '1, wheel 10, clutch 11,1ever 12, and endwise-moving red 13, substantially as described.

6. The combination of the endwise-rnoving rod 13, provided withsuitable dogs, 14, lever 12, clutch 11, wheel 10, screw 1, and column F, having a milling-tool upon its top, said tool being adjustable endwise across the top of the column, substantiallyas set forth. D

In testimony whereof I affix mysignature in presence of two witnesses.

VILLAM El. DENNEY.

Witnesses:

F. A. LEHMANN, W. H. KERN. 

